Haven't watched Tokyo Ghoul, although I plan to. Haven't watched Seven Deadly Sins, although I probably will eventually. And I'm not even going to bother getting into the whole Fate/Whatever series. Maybe when I have more time. Akame ga Kill... It's nothing special to be honest. So, I'm gonna go and say Parasyte.

My favorite anime this year is Jojo's Bizarre Adventure: Stardust Crusaders... but of the ones on the list I'll have to go with Parasyte... that show is BEAST!
Every episode is top notch quality as expected of MadHouse( the animators of Hunter x Hunter...) 11/10.

From the choices you gave us I havent seen Tokyo Ghoul or Seven Deadly Sins, & I'm not finished the others yet (had an enforced break & am still catching up!) But as to favourites, among others, I'd be more inclined to go for Mushi-shi or Re: Hamatora, or for sheer laugh-out-loud fun I'd pick Bakumatsu Rock, & for the kawaii factor - Gugure! Kokkuri-san. Too many for many different reasons!